Now, let's look at the types of systems. Exhaust-only. All right, let's get this one out of the way first. Using exhaust fans is great for local ventilation of bathrooms, kitchens, garages, and sub-slab areas (for radon control), but it's not a great strategy for whole-house ventilation. It does have some advantages: It's cheap.
When writing Common Sense, Paine wanted to show the common man why the United States should be independent of England. He also wanted to show these people that they had the resources needed to build a navy.
Thomas Paine, 1776. In January 1776 Thomas Paine published his fifty-page pamphlet Common Sense. It called for political independence and the establishment of a republican government. The pamphlet created a sensation, as much for its passionate rhetoric as for its political views.